With Russia back on the offensive after significant Ukrainian combat successes around Kharkiv and Kherson in the second half of 2022, the past few weeks have been the bloodiest so far of an already bloody war, with both sides taking extraordinarily heavy casualties. Expect it to get worse.Ukrainian defence minister Oleksii Reznikov says Russia has mobilised “much more” than 300,000 troops, perhaps up to half a million, and these are pouring into Ukraine in preparation for what is expected to be a major offensive in the coming days and weeks. Although Kyiv has also been building up its forces and...